Improvement in warp-dressing frames



UNITED STATES PATENLQIIGE,

ALEXANDER M. DAMON, OF LOWELL, MASSACHUSETTS.

IMPROVEMENT IN `WARP-DRESSING FRAMES.

Specification forming part of Letters Patent No. 58,6] l, dated October 9, 1866.

To all whom it may concern:

Be it known that I, A. M. DAMON, ot' Lowell, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement'in Dresser Frames; and I do declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l represents a front elevation, and Fig. 2 a side elevation, of the machine.

Similar letters indicate like parts in the several tigures.

In dressing the warp for looms the threads are passed over and between rolls, and also into a trough or size-box. In this operation the rolls become covered with the sizing, which is liable to harden in the spaces between the threads on the rolls, and requires frequently to be cleaned off. This process subjects the roll to much eXtra wear, and in scraping or cleaning it the covering is liable to become uneven on the roll.

The object ot my invention is to obviate this ditticulty; and it consists in providing a means t'or changing the position of the threads on the rolls as they are passed over them in the process of sizing, which is effected by attachin a slotted bar to the raddle or threadguides in such a way as to impart to the latter a reciprocating motion to and fro, while the threads are being wound from the sizing-rolls to the section-beams.

Ret'errin g to the drawings, A represents the frame of the machine, and B the sectionbeams, upon which the threads are wound after passing from the sizing-box.

Extending to the rear from the sides of thc front uprights of the frame are arms D, Fin'. 2, which support the ends of the raddle or thread-guides C, allowing them to slide freely.

in the notches or slots in the same. At the lower part of thc frame is arranged a gearwheel, G, which engages with a worm-wheel, W, motion being imparted to the latter from the machine in any convenient manner.

P represents a tlat bar of metal, having an oblique termination, E, at the upper and lower ends in opposite directions. These terminations E are slotted, the upper slot being itted over a pin attached to a part of D of the frame, and the lower slot tting over a similar pin or screw attached to a projection or frame on the lower part of the main frame, as shown in Fig. 1. The slotted portions E ofthe bar are allowed to slide freely on these pins.

To each front face of the raddle or threadguides C is attached a screw or headed pin, G, which tits within an elongated slot, S, in the bar D, as seen in Fig. l. Near the lower part of the bar D is a horizontal slot, in which lits ascrew or headed pin attached to the gear-wheel W, so that as the latter revolves the bar D will receive a reciprocating motion. The slots in the oblique ends of the 'nar will at the same time cause it to move in a diag on al direction, and thus impart tothe raddles or thread-guides a longitudinally-reciprocat- .ing motion to the extent allowed by the con nection of the bar with the gear-wheel Gr.

R R, Fig. 2, represent the sizing-rolls, one of which is provided with some suitable covering.

S represents a trough or box, in which the sizing is held, and through or into which the threads are made to pass, and from these they pass over rolls H to the raddles and sectionbeams, as shown in Fig. 2.

In machines as commonly made the threads pass directly to the raddles and thread-guides over rolls in one direction., thus passing continually over the same points in the sizingroll. In this way the sizing adheres to the rolls, and becomes dry in the spaces between the threads as the latter pass over the rolls, requiring frequent scraping or cleaning to remove the sizing. This process increases the wear of the covering of the rolls, and is lia-ble to make an uneven surface.

The reciprocating motion of the raddles in my invention, as above explained, causes the threads as they pass over (or under) the covered sizing-roll to continually change -their position on the rolls, and thus insure an even distribution ot' the sizing upon the saine, causing them to run dryer, and consequently, as has been found, increasing'the number ot' cuts in a given time, and saving the labor of :i person in scraping the rolls.

The bar P is made to extend the Whole height of the frame, so as to put in motion :t series of raddies or as many as may be required in the machine.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

The combination of the slotted bar I), constructed as described, With the raddles C and the actuating-gearing G W, when operating` as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribingWitnesses.

A. M. DAMON.

Witnesses:

J. H. ADAMS, DANIEL F. FITZ. 

